If y = e^ x + e^ - x then dy dx equals - Vidyadip

MCQ

If $y ={e^{\sqrt x }} + {e^{ - \sqrt x }}$ then $\frac{{dy}}{{dx}}$ equals

A
$\frac{{{e^{\sqrt x }} - {e^{ - \sqrt x }}}}{{2\sqrt x }}$
B
$\frac{{{e^{\sqrt x }} - {e^{ - \sqrt x }}}}{{2x}}$
C
$\frac{1}{{2\sqrt x }}\sqrt {{y^2} - 4}$
✓
$(a)$ and $(c)$

✓

Answer

Correct option: D.

$(a)$ and $(c)$

d

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